Control the BGM:

During the game, on Controller two, press A to cycle through the four different background melodies, and press B to toggle music off and on.

 

Ending:

Input the second tile in the second row from the top (two chips) as the first spot, then the character for "middle" at the left of END for the second spot. Press END around 20 times to get the Ending started.

 

Round Select:

Use a combination of two top row numbers (1 through 9 in Chinese/Japanese characters, 0 is the first character in the 2nd row) to warp to the desired round. For example, 9 9 will go to Round 99. Press END to confirm.

 

Round Select:

Expert Mode

B + Select (when choosing game).

 

Slot Machine Mode (US Release):

At the player selection screen, hold Select and press A or Start to enable slot machine for Player 1 or B to enable slot machine for Player 2. The mode name then will change to "Slot".

 

Wish to review that great game you just played?:

If so, when you complete that great game, don't start a new one. Simply wait for the ''Othello'' screen to go away. When the ''Demo'' game starts, it is not really a demo at all, but an instant review of all the moves played in the last game. This so called ''Demo'' will play over and over in a main screen/demo cycle until you either turn off the NES or start a new game. For longer term storage, I recommend capturing the demo on a VCR.